baber/WOPTO huggingface dataset:
Patent GB-526279-A (GB)
Title: Device for testing instruments and particularly gyroscopic aircraft instruments
IPC: G01C25/00
Filed: 1939-03-11
Abstract: 526,279. Indicating-apparatus. REID, G. H. March 11, 1939, Nos. 7916 and 21126. [Class 106 (iv)] [Also in Groups XX and II] An apparatus for testing the longevity and accuracy of gyroscopic and other instruments under running conditions comprises a structure adapted to carry the instrument and mounted upon a base with freedom to move angularly about three axes mutually at right-angles, and driving means arranged to oscillate the structure about at least two of the axes. As show in Fig. 1, an electric motor 11 is coupled by a reduction gear box 13 to a shaft 37 which drives a number of crank discs 43 one to each instrument-holding table 34. The instruments 51, Fig. 2, are attached to upstanding brackets 50 and are supplied with power through flexible tubes 52. Recesses 45, 46, in the crank discs may be selectively engaged by adjustable rods 47 slidable in the tables. When either of the recesses 45 are engaged, the table receives both a pitching and a yawing movement about a ball pivot 35 due to the rotation of the crank disc, and is also given a rolling movement by the engagement of lateral pins 53, 54 with inclined cam surfaces 55. After a predetermined number of movements a trip disc 22 throws over a switch 25 and reverses the motor. When the rod 47 is engaged in a central recess 44 the table remains in a level neutral position. In a modification, Fig. 5, primarily for testing air-driven gyroscopic instruments, the instruments are all mounted on the same table 60, and this is given up-and-down and lateral movements (rolling and yawing) by a crank arm 68, the pitching movements being imparted by telescopic rods 73, 74 restrained to rock in the pitching direction by appropriate arrangement of the pivots 76, 78. Air for driving the instruments is supplied through a connection 64, cocks 66 and flexible tubes.
Patent GB-774100-A (GB)
Title: Improvements in or relating to the production of fashioned garments
Inventor: WEISS KURT
IPC: D04B9/46
Filed: 1952-03-28
Abstract: 774,100. Knitting; heel fashioning. BOOTH & SONS, Ltd., A. March 30, 1953 [March 28, 1962], No. 7942/52. Class 74 (2). A widened heel part 6, beginning at a-b, is produced as follows. Thread is fed to two extra needles and sunk and divided thereon, the needles are lowered to knock over the old loops, the transfer points are operated to transfer a groop of loops outwardly one needle space (so that the inner one of the two extra needles receives a loop), thread is laid for the next course in the reverse direction, and loops are formed and knocked over. Thus the inner one of the two extra needles becomes the new selvedge needle whilst the outer one, having no loop thereon to enable it to form a new loop, yields the yarn measured on it to enlarge the new selvedge loop. Knitting is then continued without fashioning for, say, three courses and during this period the inactive transfer points are racked outwardly one needle space. Again the thread carrier traverse is increased by two needles (so that three needles beyond the selvedge loops last formed now receive yarn) loops are transferred outwardly by one needle space as before and so two extra wales are added. This sequence is repeated until the line e-f is reached. A line of widening holes 14 is produced by the outward loop transfers. Another row of widening holes 13, near the selvedge, is produced by omitting from the transfer comb what would normally be the point next to the outermost point and this gap in the points ensures satisfactory picking up of the selvedge loops. The subsequent narrowing of the heel part may be carried out by a single series of transfer operations by a small group of points at, say, every second course; or the latter part of the narrowing at 17 may be by means of a larger number of points, transferring loops at, say, every fourth course. The first method of narrowing will produce fashioning marks 18 which can be taken in with the seams. The second method produces marks 19 which will appear on the finished stocking.
Patent GB-1536199-A (GB)
Title: Finely divided amorphous precipitated silicon dioxide and method of producing same
IPC: A61K8/00
Filed: 1976-03-01
Abstract: 1536199 Compositions containing novel silicas J M HUBER CORP 1 March 1976 [12 March 1975] 07997/76 Heading A5B [Also in Divisions Cl C3 C5 and D2] Novel silicas having the following specified properties are incorporated into pharmaceutical, cosmetic and dentifrice compositions; wet cake moisture content 77.9 to 84.3% structure index 350 to 536 oil adsorption 187 to 221 cc/100g SiO 2  void volume 3.01 to 4.44 cc Hg/g B.E.T. surface area 120 to 243 m<SP>2</SP>/g percent friability up to 98% These novel silicas serve as thickeners, suspending agents, emulsion stabilizers or aids, binders or viscosity building agents. Examples are given of the use of these silicas in drying humectants, in increasing the viscosity of humectants and as thickeners with a controlled refractive index for use in clear gel or opaque dentifrices wherein they also act as polishing or abrasive agents.
Patent GB-783688-A (GB)
Title: Improvements in or relating to furnishing accessories
Inventor: AITCHISON JOHN FREDERICK
IPC: A47B85/06
Filed: 1956-03-14
Abstract: 783,688. Combination furniture. BUCKINGHAM. Ltd. A. F. March 14, 1956. No. 8015/56. Classes 52(2) and 52(3) A bed head-board 1 is provided on its rear surface with folding legs 11 so that it can be used as a table and with pairs of undercut guides 6, 7 which detachably receive supports 8 having slotted lower ends adapted to be attached to the bed frame. Spring catches 12, 14 retain the legs in the folded and extended positions respectively
Patent GB-688683-A (GB)
Title: Improvements in or relating to heat treatment furnaces
Inventor: HYND JOHN
IPC: F27B9/38
Filed: 1949-03-24
Abstract: 688,683. Metal heating furnaces. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd. March 24, 1950 [March 24, 1949], No. 8121/49. Class 51 (ii). A continuous heat treatment furnace for steel ingots comprises a heating chamber 3 fired by oppositely disposed gas burners 15, a preheating section 2 with waste gas exhaust ports 16 at either end, and a soaking pit 4 fired by burners 12 in the end wall 13 with waste gas exhaust ports 14 disposed below the burners, the exhaust ports 14 and 16 being equipped with dampers to vary the heating cycle. The soaking pit has a removable cover 10 actuated by conventional operating mechanism 11 and conventional watercooled skids 5 and ingot pusher mechanism 19 are provided. The soaking pit hearth 7 is below the level of the skids 5 and ingots 18 falling thereon are stood on end by a crane.
Patent GB-775569-A (GB)
Title: Improvements relating to seals for electrical waveguides
Inventor: COOPER DENNIS CYRIL
IPC: H01P1/08
Filed: 1954-03-19
Abstract: 775,569. Waveguide accessories. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. March 31, 1955 [March 19, 1954], No. 8140/54. Class 40 (8). A dielectric gas seal for a waveguide comprises a block of, e.g., polythene or polytetrafluoroethylene having a concavity on the side exposed to gas pressure and a corresponding convexity on the other side, the block being of constant thickness in the longitudinal direction of the guide. This thickness is indicated by the length l on Figs. 4 and 5 which show two sections through the block at right angles. The gas pressure presses the edges 4 of the block against the sides of the guide. In order to make the edges more flexible they may be recessed as shown in Fig. 8. The block may be held in position by screws or dowels having rounded heads which engage the sides of the block. The block may have curved, instead of planar, surfaces.
Patent GB-416275-A (GB)
Title: Improvements in and relating to a device for closuring bottles or the like
IPC: B21D51/46
Filed: 1934-03-15
Abstract: 416,275. Closure-applying apparatus for bottles &c. ENZINGER-UNIONWERKE AKT.-GES., Pfeddersheim, near Worms-on-Rhine, Germany. March 15, 1934, No. 8228. Convention date, March 17, 1933. [Classes 125 (ii) and 125 (iii).] In apparatus for putting out of action a machine for closing bottles, working with a feeding-device for taking packing-discs from a magazine and transferring them to a position in which they are automatically inserted in closing caps, the feeding-device exerts a spring pressure on the disc of such strength that it can only be resisted by a complete undamaged disc, and initiates the stopping of the machine when a damaged disc or no disc is present. The completely pressed cap 1, Fig. 1, is carried by an intermittentlv rotating transferring disc 2 to a position 3 where a packing-disc is inserted, and is held there by an arm 4 connected to a lever 5 one end of which is pulled by a spring 6 while the other carries a roller 8 contacting with a cam 9. The packing-discs 11, Fig. 2, are stored in a magazine 10 beneath which is a reciprocating slide 12, mounted on a sliding block 13 guided on a rail 16, and pushed forward by a compression spring 14. The slide is reciprocated by a rod 17 actuated by a cam 18 and lever 19. The stroke of the block 13 is greater than the movement required of the slide 12 to bring a packing-disc into position, so that if an undamaged disc is present the spring 14 is compressed, and the packing- disc is inserted by a plunger 27 carried by a block 23 reciprocated by a cam 21 and lever 22, and guided by a pin 24 sliding in a boss 25. If a faulty disc or no disc is fed by the slide 12, the spring 14 is not compressed, and the slide 12 projects into the path of the plunger 27, so that the spring 26 is compressed and the continued upward movement of the block 23 moves a bolt 29 in a cam slot 28 in the plunger 27 so that the bolt 29 moves in the block 23 in the direction of the arrow and engages a safety lever 30 to stop the machine.
Patent GB-147537-A (GB)
Title: A device for finding harmonious colour combinations
IPC: G01J3/52
Filed: 1920-03-19
Abstract: 147,537. Tanner, H. July 12, 1919, [Convention date]. Addition to 143,198. Colour scales.-In a device as described in the parent Specification, the chart comprises, in addition to the colour scale around the circle I, a number of other circles II-X showing the colours produced by mixing the colours in the circle I with different proportions of white, grey, and black.
Patent GB-727768-A (GB)
Title: Method of preparing fluoro-esters, -ethers and -acetals
IPC: C07B39/00
Filed: 1953-03-25
Abstract: Fluoro-esters, -ethers and -acetals are obtained by mixing the corresponding chloroesters, -ethers or -acetals with potassium fluoride in presence of a solvent containing or consisting of acetamide and/or N-methylacetamide, the chloro compounds having a lower boiling point than that of the acetamide.  The optimal proportions of ethyl chloroacetate potassium fluoride, and acetamide to give ethyl fluoroacetate, and by a similar method, formaldehyde bis-b -fluoroethyl, and b b 1-difluorodiethyl ether are given.
Patent GB-127091-A (GB)
Title: Improvements in Tractor Ploughs.
IPC: A01B63/14
Filed: 1918-05-21
Abstract: 127,091. Austin Motor Co., and Austin, Sir H. May 21, 1918. Ploughs.-Special means are provided for causing the pull of a tractor to raise a one-way or other plough from the ground when part of the apparatus connecting the plough to the tractor is released. The plough runs on one or more castor wheels g, each mounted in an inclined and pivoted fork g<1>, which is linked by a rod h to the tractor A. The plough frame d is pivotally connected to arms c<3> mounted on a spindle b<2> carried by arms b<1> projecting from the axle casing b of the tractor. The arms c<3> are normally held in position by a spring catch f<1>. When the catch f<1> is moved by means of a cord &c. and the tractor moves forward, the arms c<3> turn about the axis b<2> and the plough remains stationary, while the castor wheel g is drawn forward to raise the plough. The plough may be raised farther by means of a handlever c connected with the arms c<3> and provided with a locking-quadrant c<2>. The plough is lowered into position for re-entering the ground by operating the lever c and backing the tractor. The rear share may be raised and locked in inoperative position by means of a lever k and locking-quadrant k<2>. Two plough frames are mounted alongside one another and are provided with righthanded and left-handed ploughs respectively. They are raised and lowered alternately, so as to turn the soil all one way. The castor wheel g is of the kind described in Specification 127,090, [Class 52 (i), Furniture, Fittings &c. for]. It castors about a pin g<2> mounted in a pivoted yoke G. In order automatically to reverse the position of the wheel g to adapt it to act as a castor when the plough is backed, without swinging it about the pin g<2>, the fork g<1> is pivotally connected by a pin g<6>. to a block g<7> surrounding the pin g<2>. Stops g<8> limit the turning movement about the pin g<6>. In another form, the axle of the wheel g moves in slots in the ends of the fork g<1>.
Patent GB-181805-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/14
Filed: 1921-03-17
Abstract: 181,805. Challis, P. March 17, 1921. Sparking-plugs. - The insulation b preferably consists of silica and engages the casing and thread of the central electrode by means of conical seatings inclined at approximately 45‹ to the plug axis. The plug is kept together by a nut on the outer end of the electrode which bears on a second insulator d, a spring spider e and washer g' being also fitted if desired. The portion of the electrode within the casing, in addition to being exposed through openings in the casing wall, is further cooled by being provided with screws, threads or ribs h. The inner end of the electrode may be serrated or knurled; and the adjacent parts of the casing and electrode head may be made non-circular to allow of adjustment of the spark gap.
Patent GB-673771-A (GB)
Title: Improved construction of crutch for cripples use
Inventor: BURKE HAROLD
IPC: A61H3/02
Filed: 1950-04-04
Abstract: 673,771. Crutches. CONCENTRIC MANUFACTURING CO., Ltd. June 6, 1950 [April 4, 1950], No. 8387/50. Class 81 (ii). The pivoted forearm clip of Specification 663,247 is provided with a readily releasable catch to hold it in the horizontal position. The clip 2 is supported on a block 8 having a pivot pin 9 located in vertical slots 18 in a fork at the head of the staff. A stud 19 engages in a recess 20 in the block 8 to hold the clip horizontal but is disengaged by lifting the arm so that block 8 is raised. The forearm can then be returned to the vertical position, the pin 19 running in a groove 21, the right-hand end of which serves as a stop when performing the locking movement.
Patent GB-872018-A (GB)
Title: Improvements in or relating to stereophonic signal transmitting and reproducing systems
Inventor: BROWNE GEOFFREY D ARCY
IPC: G11C7/02
Filed: 1959-03-11
Abstract: 872,018. Binaural systems. MULLARD Ltd. Jan. 6, 1960 [March 11, 1959], No. 8407/59. Class 40 (4). [Also in Group XL (c)] In order to transmit compatible stereophonic sound signals, audio signals A and B are supplied to coding samplers V1, V2, Fig. II, which are short suppression gridbase pentodes switched by their suppressor grids. A sampling wave generator G1 operating at 35 kc/s., via a transformer T1 provides two waveforms in antiphase which are rectified by diodes D1, D2, respectively, and supplied to the suppressor grids of V1, V2, the waveforms being modified by the action of valves V1, V2 to produce interlaced sampling waves, Figs. III a and b. The coded waveform, Fig. III e, shows the combined output from the samplers VI, V2, and to provide identification of the A and B samples at the receiver a small amount of the 35 kc/s. signal in phase quadrature with the sampling waves is combined with the coded wave and passed through a low-pass filter (not shown). In the resulting signal, Fig. III f, alternate minima m 0  of the signal have their level displaced away from the maxima. At the receiver, Fig. IV, the output of a conventional F.M. discriminator is supplied via terminal t and amplifier V3 to a pair of gating valves V5, V6. The signal from terminal t is also supplied to a sampling wave generator V4 for separation of the minima m 0 , a circuit LC tuned to 35 kc/s. supplying sine wave outputs of opposite phase to phase-adjusting stages Pa, Pb. The outputs from Pa, Pb are rectified at D5, D6, and supplied to the suppressor grids of V5, V6, class C action of the valves modifying the waveforms as in Fig. II and Figs. III a, b. The circuits Rd, Cd are conventional de-emphasis networks for the higher frequencies and also serve to attenuate the sampling frequency components. A modified receiver circuit giving component values is included, Fig. V (not shown). It is stated that the system may be applied to the reproduction of stereophonic sound from a record player using a single wideband amplifier in place of the two channels normally provided. A single sampling wave generator is used to effect both encoding and decoding and decoding may take place at the speech coils of the two loud-speakers. If a radio receiver is incorporated the sampling wave generator will be synchronized as described for radio reception, but for record playing it will operate as a free-running generator.
Patent GB-1203493-A (GB)
Title: A multiple switching device
IPC: H01H13/14
Filed: 1968-02-21
Abstract: 1,203,493. Mechanical switches without quick action. L'ISOSTAT. 21 Feb., 1968 [21 Feb., 1967], No. 8529/68. Heading H1N. [Also in Division H3] A selector switch has four parallel independent selector rods 35, 36, 36<SP>1</SP>, 42, Figs. 1, 2, projecting at one end and slidable within an insulating casing 2 to actuate sliders 28, 30, 32, 34, carrying movable contacts 22, 23 between fixed changeover contacts such as 10, 11, 12 and 19, 20, 21. The switch may be arranged in conjunction with a push button tuner (see Division H3) for preselection of frequencies &c. of a television or radio receiver, the selector rods being masked by separate covers (not shown) so that they are not normally accessible. Each rod 35-42 may be actuated by small push buttons (60), Fig. 5 (not shown), or by engagement of a hooked member in blind holes 48, 54. The fixed contacts comprise wires inserted through the casing 2 and cover 8 and crimped externally to lock the assembly together. The wires may project on both sides for engagement with printed circuit boards. The moving contacts 22, 23 comprise spring clips located in recesses 24 of the sliders 28-34 which are integral with the actuating rods 35- 42 and arranged both side-by-side and one behind the other for association with four separate sets of fixed contacts.
Patent GB-1198070-A (GB)
Title: Process for Heat Treating Copper Base Alloys
Inventor: ENCE ELMARS
IPC: C22C9/00
Filed: 1967-09-15
Abstract: 1,198,070. Heat-treating copper alloys. OLIN CORP. Sept. 15, 1967 [Sept. 26, 1966], No.8563/70. Divided out of 1,194,887. Heading C7A. A Cu-base alloy consisting by weight, of Cr 0À1-2À5% P 0À01-0À5% Cu and impurities-balance, is heat-treated as described in Specification 1, 194, 888.
Patent GB-116170-A (GB)
Title: Improvements in the Valves of Internal Combustion and other Engines.
Inventor: RYLAND CHARLES FREDERICK
IPC: F01L7/00
Filed: 1917-06-16
Abstract: 116,170. Ryland, C. F. June 16, 1917. Valves.-A rotary or reciprocating sleeve valve for internal-combustion on other engines is made of two metals of different expansibility, such as brass and steel, so that its diameter remains the same at different temperatures, or to provide for expansion or contraction with temperature changes to maintain a close fit. The valve shown in Fig. 1 consists of sleeves of steel B and brass C riveted together and divided at A. The sleeves may be arranged so that the two slots do not coincide. The valve may be connected to an internal actuating-piston. Fig. 5 shows an arrangement for replacing the poppet valve of existing engines by sliding valves. The valve B, iC works over a fitting K ported at D and screwed into a poppet-valve seating, and the valve is reciprocated by the cams of the usual timing gear actuating a piston E formed with projections E<2> extending through slots in the fitting to engage the valve. The invention is applied also to a semi-rotary valve working in a cylinder head.
Patent GB-802177-A (GB)
Title: Improvements relating to electrical apparatus embedded in cast insulation
Inventor: WELLINGS JOHN GALE
IPC: H01F27/02
Filed: 1956-03-20
Abstract: 802,177. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 21, 1957 [March 20, 1956], No. 8672/56. Class 38 (2). Electrical apparatus is embedded in cast insulation in a casing and is provided with a reticulated conductive screening to prevent corona discharges across spaces occurring if the insulation should contract. As shown, a three-phase transformer has windings 1 on legs 2 of a magnetic core and is embedded in insulation 4 in a metal casing 5. A conductive wire mesh screen 6 is disposed in the insulation in such a way as to remain embedded should the insulation contract and leave spaces 8. Metal pins 7 support the screen and maintain it at the potential of the casing. Screens may be disposed adjacent other parts of the transformer.
Patent GB-1095031-A (GB)
Title: Improvements in pipe attachment devices, in particular for attaching the jet pipes of jet propulsion units
Inventor: CAMBOULIVE ANDRE ALPHONSE MEDE
IPC: B64D27/26
Filed: 1965-03-01
Abstract: 1,095,031. Pivotable jet propulsion nozzles. SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. March 1, 1965 [March 5, 1964], No. 8679/65. Heading B7G. [Also in Divisions F1 and F2] The propelling nozzle of a jet propulsion engine is pivotally mounted on the engine casing by means of diametrically opposed connectors V mounted on a flange 10 of the engine casing and each containing a pivotable shoe 12A abutting a flange 3 on the propelling nozzle 4. Each shoe has an arcuate surface engaging a semicircular groove 13, and a substantially plane surface 14 abutting the flange 3. The pivot axis is the centre of curvature of the groove and arcuate surface, and the surfaces 14 of the two connectors may pass through these centres, the nozzle then being pivotable about a diameter, or the surfaces may be offset in opposite senses so that one shoe 12A is larger than a semi-circle and one smaller, and the pivot axis is then inclined relative to a diameter.